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2. Error no. 1 00.
3. Error nos. 101 to 109.
4. Error nos. 111 to 119.
5. Error nos. 121 to 128.
6. Error nos. 130 to 131.
7. Error no. 132.
8. Error nos. 140 to 141.
This error is displayed, when the 1053 is switched on, if there has been
a change in any of the stored front-panel test set-ups. This can be
caused by the memory battery discharging due to a lack of recent use.
When this error occurs, the 1053 automatically sets all four memories
to default values which form the basis for new test set-ups. Refer to
section 7.3 for further details of the default values. With two hours of
use per week, the battery will be kept charged and capable of storing
the front-panel test set-ups.
These are cross-over frequency consistence errors. The error cude
may appear upon cross-over frequency calculation or when the
'~Oper
ate" key is pressed.
Consistence means that "cross-over frequency 2"
>
1 ,063 x "cross-
over frequency 1 ", and "cross-over frequency 3"
>
1 ,063 x "cross-
over frequency 2" etc. for the number of cross-over frequencies
associated with the selected number of levels set.
The last digit of the error number indicates the cross-over frequency
that does not fulfil the above conditions.
If "cross-over frequency 1" is calculated to be lower than 1 ,063 Hz,
Error 101 is displayed. If the highest, included cross-over frequency is
calculated to exceed 9999,6 Hz, then Error 109 is displayed.
These error codes appear when the "Operate" key is pressed.
The 1053 checks whether the test can be run from the sweep lower-
limit to the sweep upper-limit within the measurement ranges given in
the chapter 1 - specifications. The last digit of the error code indicates
the set level which would cause either over-range or under-range.
Therefore, the set level indicated or the sweep limits should be
corrected.
These error codes may appear upon cross-over frequency calculation.
The last digit of the error code indicates the cross-over frequency
which cannot be calculated. This will be because the two set levels,
resulting in the cross-over frequency error, have the same function (for
example, they both use acceleration control).
These error codes are compressor safety errors.
This error indicates that the sweep time is too short. This error is
caused by the combined effect of a fast sweep rate and a short fre-
quency sweep.
These error codes are auxiliary apparatus errors.
69
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